3-苄磺酰基-1H-1,2,4-噻唑-5-胺 、 Malonaldehyde bis(diethylacetate) 在
异丙醇 作用下,
以
溶剂黄146 为溶剂,
反应 17.0h,
以to afford 0.4 g (17%) of the desired product as a light brown crystalline solid, m.p. 104°-106° C的产率得到2-benzylthio-1,2,4-triazolo[1,5-a]pyrimidine
Novel substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamides and
申请人:The Dow Chemical Company
公开号:US04755212A1
公开(公告)日:1988-07-05
Novel compounds, e.g., 5,7-dimethyl-N-(2,6-dichlorolphenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sul fonamide and their compositions and use in the control of weeds and in the suppression of nitrification of ammonium nitrogen in soil. Other novel compounds and their compositions and use in the inhibition of bolting in sugar beets. Other novel compounds and their compositions and use as plant gametocides.
Intermediate compounds for the preparation of 1,2,4-triazolo [1,5-a]pyrimidine-2-sulfonamides
申请人:DowElanco
公开号:EP0330137A1
公开(公告)日:1989-08-30
Novel compounds, e.g., 5,7-dimethyl-N-(2,6-dichlorolphenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamide and their compositions and use in the control of weeds and in the suppression of nitrification of ammonium nitrogen in soil. Other novel compounds and their compositions and use in the inhibition of bolting in sugar beets.